64361420 has 24 divisors (see below), whose sum is σ = 135708048. Its totient is φ = 25640000.

The previous prime is 64361413. The next prime is 64361459. The reversal of 64361420 is 2416346.

It is a self number, because there is not a number n which added to its sum of digits gives 64361420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391 + ... + 11430.

It is an arithmetic number, because the mean of its divisors is an integer number (5654502).

Almost surely, 2^64361420 is an apocalyptic number.

It is an amenable number.

64361420 is an abundant number, since it is smaller than the sum of its proper divisors (71346628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64361420 is a wasteful number, since it uses less digits than its factorization.

64361420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13081 (or 13079 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64361420 is about 8022.5569490032. The cubic root of 64361420 is about 400.7515453978.

Adding to 64361420 its reverse (2416346), we get a palindrome (66777766).

The spelling of 64361420 in words is "sixty-four million, three hundred sixty-one thousand, four hundred twenty".